[rhelv6-list] Align partition question on vmware
francis picabia
fpicabia at gmail.com
Thu Mar 20 16:59:18 UTC 2014
Hi all,
So I install Redhat 6 on a vmware system. Later I learn
this partition alignment issue common to large 1TB+
drives can be an issue on vmware.
I check a recent system, and the installer seemed
to do the right thing with sda, as the fdisk -lu
reports the first cylinder is 2048
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 24578047 12288000 83 Linux
I added another vm storage later for /usr/local
and it seems to be set up the old way:
fdisk -lu
Disk /dev/sdb: 219.0 GB, 219043332096 bytes
255 heads, 63 sectors/track, 26630 cylinders, total 427819008 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xaa10a650
Device Boot Start End Blocks Id System
/dev/sdb1 63 427810949 213905443+ 83 Linux
The guys running a system from there are claiming it is slower than
the Sun 208R they were used to running, and it has no load on it.
Most articles I see about this are taking about the boot loading
disk, while I'm looking at the issue for sdb. Should I be concerned
and looking at redoing the partitioning?
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